The fist opinion may be solved if Transtops dont have to Align at a 2x2 grid. But that might be some problem becaus the mecanics seem to depend on the 2x2-track-tile the stop is attached to.
So it would be indeed a nice option to NOT have to align to an 2x2 grid.
They just need to add 8 transition-tiles between even grid and odd grid for each straigt direction. And there a no problems with control points.
Look here (orange + yellow = normal length, orange = short lengt to connect to offgrid):